Nut lock



Dec, 11924.

5. W. GRIFFITH ET AL NUT LOCK Filed Sept. 22, 1923 Tea whentmay'hnacem.

Patented than F, iti ii let .1 @Be 1h known" that we; ished W3. GRIFFITH and li-romms-:E. D'OHONEYQ citizens "of the Un-uied States, residing at Johnstovvn', n he county of Cambria and State of Pennsyh vania, have invented certain new a-nd'us'eful t almprm'ements in "It at Locks," and they do hereby tl ecflarethe folldiving to be a full, clear, tron, such as will enable others'skrlled n the artto which it appertains to make and use the same. 1 i

The object of th oresent invention is the sccurement of the mat upon a bolt or like part to prevent displacement thereof and to maintain the required adjusted position of the nut.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

While the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, rious changes in the form, proportion and details of construction may be resorted to Without departing from the nature of the adjustment of the nut 3.

invention.

Referring to the accoinpanyingdlrawings forming a part of the application:

Figure 1 is a side view of a bolt having the nut thereon secured by locking means embodying the invention,

Figure 2 is a central longitudinal section of the bolt on the line 2-2. of Figure 1,

Figure 3 is a transverse sectional view on the line 33 of Figure 1,

Figure 4C is a detail sectional view on the line 4-4 of Figure 1, and I Figure 5 is a detail perspective-view of the locking key.

Corresponding and like parts are referred to in the following; description and desig nated in. the several views of the drawings by like reference'characters.

The numeral .1. designates a boltv having a head 2 at oneend and threaded for the major portion of its length to receive a nut 3. A diametrical kert 4 is termed in the threaded end. of the bolt and extends longitudinally thereof a determinate distance so as to be comprised within the range of An axial opening 5 extends from the inner end of the kerf 4 through the head of the bolt. The bolt opening of the nut 3 is providodupon its Pres in'nei slat nah plurality' n 'er o, s

-.an'd exact description of the inven .inor

inane Whiclrfare' adapted to register with the metrical 'kerftin ditlerent-adjusted p ti ons-of the nut. Any nuinbefof gro may be provided and thesaine may besp'a 1 apart any determinate distance toj allo ninety of adjustment ofthe nut a; i

The lokingf key com prises 'a stein-Z 'h; I ahead at one; endfiincluding an" oute HW- portio'n' and airinner'iiarrow portion; latter coming Within the threaded; sides ale bolt, wit esses; part 8. projects yond the threaded sides of the bolttoe er oppositely disposed grooves 6 in line with the diametrical kerf 4, thereby locking the nut from movement in either direction. 'lhesides of the projecting portion of the part 8 are beveled to facilitate their entrance into the grooves 6. The key is preferably flat throughout its extent, thereby admitting of its formation from sheet metal by being struck therefrom. However, it 1s ohv1ous that the key may be of any construction.

grooves 6 register with the diametiieal groove The key is now placed in position by passing the stem 7 through the kerf 4 and opening 5 and moving the same to a position so that the Wide portion 8 of the head is disposed within the nut 3 with the projecting edges thereof entering the grooves 6 in register with the kerf 4. The end of the stem 7 projecting beyond the head of'the bolt is bent laterally against the latter, as indicated at 10 in Figure 1, thereby preventing outward displacement of the key, inward movement of the key being prevented by the shoulders 11 at the inner end of the part 8 engaging the part, not shown, to which the bolt may be applied. By straight suing the bent end 10 of the key, the latter may be readily removed, thereby admitting of repeated use of the bolt and nut look.

What is claimed is: 1. in combination, a bolt having a kerf in its tln'eadedv end and provided with a longitudinal opening extending from the inner end of the kerf through the opposite end of the holt, a nut mounted upon the threaded end oi the bolt and having grooves in the inner side of the bolt opening to register with the said kerfi and a key comprising a stern having a head at one end, the

adapted to registei with the latter lying within the kerf of the bolt and projecting beyond. the threaded side to enter grooves of the nut in register with the kerf, and said stem extending through the opening of the bolt and adapted to have the projecting end bent laterallyagainst the bolt to prevent outward displacement of the y, v I i 2. In combination, a bolt having a dieinetrieal kerf extending longitudinally thereof a. determinatedistance and 'prov1ded with an exial opening extending from the inner end of the kerf through the headed end of the bolt, a nut mounted upon .the- 15 bolt and provided upon the inner side ot the bolt opening with a 'pluralit of grooves erf of the bolt, and a key comprising a stem ha'vinglr'l I sides of the )Olt to enter opposed grooves of the nut in register with the diainetrical kerf, thestein of the key bein" adopted to pro'ect beyond the headed cm? of the bolt wit the projecting end bent laterally there against-. v

In testimony whereof they aflixed their signatures in presence of two witnesses.

ISAAC W. GRIFFITH. v

. THOMAS E. DOHONEY.

'itnessesz' I Jonx J. MARTIN,

J. P. MINAHAN. 

